Impbovement in pipe couplings



@im faire anuffffa'- V IMPROVEMENT 1N PIPE GOUPLINGS.

ALFRED G WYNNE, OF NEW YORK,] N. Y.

Laim Paten: No. 60,178, ma member 4, 186s.

'2O ALL WHOM IT MAY CONGERN: Be it known that I, ALFRED GWYNNE, of the city of New York,.iu the county of` New York, and State of New York, have invented a new `and improved Joint for Water and other Pipes; nudl do hereb y, declare that the "i following is a full, clear, and exact description thereof,`and of its mode or manner of operation, reference being had to the accompanying drawings, and to the letters of reference marked thereon, and making a part of this specification. AThe nature of .my invention consists in an improved joint for, o1' an improved mode of, connecting the ends i of water. and other pipesby which the use of clay, lead, and similar packing can be dispensed with, and by which the ends of such pipes can 'he qnickly'and cheaply connected together, andcan also he easily disconnected,

when necessary or desirable.

Figure 1 is a perspectiveview of vthe ends of two pipes when connected together. Figure 2 is a similarview, showing the ends of the pipes slightly separated, andthe packing between them. Figure 3 is a sectional view of iig. 1.

The ends of the pipes are made substantially in the usual manner,` that is, one end ci' each section iscast` i i or made for a, clittle distance somewhat larger than the other end, so that the smaller` end of each pipe can slip I. y

within the enlarged end of any other pipe. Upon the smaller end of the pipe there is also usually a rim orY head on the outside, fdr tlm lpurpose hereafter mentioned. In this space between suchenclosing and enclosed tube, lead, clay, or other imilar'niaterial or packing has heretofore -been inserted and-iixed,'and it has been by the means of such packing that'the joint has been made-.tight By my method of fastening the ends of jthe pipe sections, I am, however, enabled to dispense with the use of lead, clay, or similar packing; and still secure as close and tight a joint@ as when they are used. The joint is also very cheaply made, and the pipes can be l i very quickly put together, and also easily disconnected whenever necessary.

My improved joint is made substantially as follows y The enlarged end, A, of `he pipe section is made with a shoulder, a, upon its innerside, against which'the end, I, of another pipe section abnts when the two are placed together. Between such shoulder of the enclosing V pipe, and the end of the inserted pipe, I place a ring or disk, c, of rubbengutta perche, ifelt, leather, or `anyn suitable elastic or partially elastic substance. Through the enlarged partei' the enclosing pipe, and just, above ,f p the shoulder, a, I make a number of screw taps, d d, passing in a diagonal directionas .shown in iig. 3, and so located or made that the ondsof the screws, 1 1, passing thrqugh them or inserted therein, willstrikeland press against the` rim or bead, e, on `theend of the enclosed pipe. There should beat least three such screws .or fastenings, but the number may be increased as required or desired. `When the ends of the pipes are inserted one within the other, and the disk or ring of packing placed between the end of thetinserted pipe andthe shoulder formed inthe other, the screws, 1 1 1, are driven, and these acting against the rim, e, or the lower end of the enclosed pipe and in a direction towardthe shoulder, a, force the end of the inner pipe against the packing and both against the shoulder referred to, and thereby produce a close and tight joint capable of withstanding any` pressure to which such pipes are ordinarily subjected. By increasing the number of screws the points of pressure" willlb'e increased, but for waterA and gas pipes-of three or four inches iu diameterthreo screws will be found` amply sucient, experiment having shownk that that number of screws is suilicient: to bring and hold the` psrtgl i so closely'together as to readily bear a pressure of iifteen pounds of steamwithout at all leaking.

What I claim es my invention, and desire to secure by Letters Patent, isf- 1. The method of securing or fastening together the ends of water and other pipes, by means of the `screws 1 1 1, or their equivalent, arranged and operating substantially as and for the Purposes set forth.

2. In` combination with such method of -fastening the ends Vof such pipes, the use of an elastic ringerl ackin substantiall as and for the u oses setforth. P g y P rp A.. I

Witnesses:

S. D. Lliw,` Taos. B. Brass. 

